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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Biodegradation in water: screening tests

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Administrative data

biodegradation in water: ready biodegradability
Type of information:
experimental study
Adequacy of study:
key study
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Guideline study obtained through inquiry process; SNIF file obtained from ECHA.

Data source

Reference Type:
other: SNIF

Materials and methods

Test guideline
according to guideline
EU Method C.4-C (Determination of the "Ready" Biodegradability - Carbon Dioxide Evolution Test)
not specified
GLP compliance:

Test material

Constituent 1
Reference substance name:
Body responsible for the test
Body responsible for the test
Test material form:
not specified

Study design

Oxygen conditions:
not specified
Inoculum or test system:
not specified
Duration of test (contact time):
28 d
Reference substance
Reference substance:

Results and discussion

% Degradation
% degradation (CO2 evolution)
Sampling time:
28 d
Details on results:
Points of degradation plot (test substance):
0 % degradation after 2 d
0 % degradation after 5 d
1.9 % degradation after 7 d
3.4 % degradation after 9 d
0.2 % degradation after 12 d
0.7 % degradation after 14 d
1 % degradation after 19 d
1.7 % degradation after 23 d
0 % degradation after 28 d

BOD5 / COD results

Results with reference substance:
Points of degradation plot (reference substance):
0 % degradation after 2 d
26 % degradation after 5 d
61.4 % degradation after 7 d
69.1 % degradation after 9 d
68.8 % degradation after 12 d
62.5 % degradation after 14 d
76.5 % degradation after 19 d
81.6 % degradation after 23 d
84.4 % degradation after 28 d

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Interpretation of results:
under test conditions no biodegradation observed
Degradation = 0 % after 28 days
Executive summary:

The test substance was not readily biodegradable (0% degradation after 28 d) in a GLP study according to EU Method C.4 -C (Modified Sturm Test).